Memory and event-related potentials for rapidly presented emotional pictures.

Memory and event-related potentials for rapidly presented emotional pictures.
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快速呈现情感图片的记忆和事件相关潜力。

DOI:
10.1007/s00221-010-2356-6
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发表时间:
2010
影响因子:
2
通讯作者:
Lang,PeterJ
Lang,PeterJ
中科院分区:
医学4区
文献类型:
--
作者:
Versace,Francesco;Bradley,MargaretM;Lang,PeterJ

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在情感和中性图片的快速串行视觉呈现(RSVP)后评估密集阵列事件相关电位(ERP)和记忆表现。尽管演示极其简短,但与中性图片相比,激动人心的图片会促使枕骨传感器上的负电压增强,从而复制了之前的编码效果。在随后的识别测试中,激发情感的图片也能被更好地记住,命中率更高,辨别能力也更好。在识别测试期间测量的 ERP 表明,命中和正确拒绝之间存在早期(250-350 毫秒)正面分布的差异,以及后期(400-500 毫秒)更集中分布的差异,这与通常使用较慢呈现速率时发现的 ERP 识别效果一致。这些数据与这样的假设相一致:情感图片的特征在快速连续的视觉呈现过程中会突然出现,从而促进更好的记忆表现。
Dense array event-related potentials (ERPs) and memory performance were assessed following rapid serial visual presentation (RSVP) of emotional and neutral pictures. Despite the extremely brief presentation, emotionally arousing pictures prompted an enhanced negative voltage over occipital sensors, compared to neutral pictures, replicating previous encoding effects. Emotionally arousing pictures were also remembered better in a subsequent recognition test, with higher hit rates and better discrimination performance. ERPs measured during the recognition test showed both an early (250–350 ms) frontally distributed difference between hits and correct rejections, and a later (400–500 ms), more centrally distributed difference, consistent with effects of recognition on ERPs typically found using slower presentation rates. The data are consistent with the hypothesis that features of affective pictures pop out during rapid serial visual presentation, prompting better memory performance.
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